i = 1
while i <= 5:
    print("当前轮数：%d", i)
    i += 1

i = 1
j = 1
tt = 5
while i <= tt:
    j = 1
    while j <= i:
        print("*", end="")
        j += 1
    print("")
    i += 1


def muti_table():
    i = 1
    tt = 9
    while i <= tt:
        j = 1
        while j <= i:
            print("%d * %d = %d\t " % (i, j, i * j), end="")
            j += 1
        print("")
        i += 1
